Water sprinkler



March 23 1926. Y w. c. TODD ET AL.

WATER SPRINKLE R Filed Sept. 12, 1924 AMW,

rfa/fles /Domerq Patented lli/lar. 23, 1926.

Unirse stares agarrar perrier,

reinste VIILLIAllI CHARLES TODD AND`JAMES V/'ILLlAM PGMEROY, OF VCTORIA, BRITISH COLUMBEA, CANADA. i

A Y WATER srRrNKLnn.

Application filed September 12, 1924. Serial No. 737,268. l

To all '10.710172 t may conce/rn.'

Be it known that we, llrLLraM C. Tono and Jarras lV. Poivrnnor, citizens of the Dominion of lCanada, residing at 'Victorim inthe Province of British Columbia, Cana da, have invented certain new and useful Improvements in Water Sprinklers, of which the following,- is a specification. n

This invention relates to a water sprinkler of that class wherein a reaction sprinkler head is rotatably mounted on a hollow central stem through which it derives its water supply, which central stem, or anotherco axial with it, is independently rotatable so that a jet or jets of water projected upward and outward from the central stem rotatingr slowly may be projected outward beyond the lZone sprinkled by the reaction sprinkler.

The improvements are particularly di# recte'd to a novel means for rotating the central stem from` the rotation of the renected drive.

The invention is particularly described in the following specification, reference being made to the drawings by whichit is accompanied, in which:

Fig. 1 is a vertical section through the device. Y v

vTig2 is a section on the line 2-2 in Fig.

1, and

Fig. 3 shows a modification in the manner of mounting the reaction sprinkler head and the central stem.

In these drawings 2represents the upper end of an upright pipe connected to a suitable water service. On this pipe 2 issecured a connection 3 in which is rotatably mounted the hollow central stem 4. rlhis stem 4 has a collar 5 at the lower end and passes gland-packed at 6 through the upper end of Beyond this gland nut thestem is reduced as at 7 to form a seatedbearing for the hub 9 of the reaction sprinkler.

This hub 9 is chambered as at 10 intermediate its ends and receives its water supply from within the central stem through apertures 11. From this hub 9 radially project the customary jet pipes 12, the ends of which are backwardly turned or have backwardly directed jet nozzles to afford the required reaction impulse to rotation.

In the upper end of the reduced portion 7 Iof the stein 4.- is secured a jet pipe 13, the

axis of which is angularly directed outward from that of the stem, and between this jet Vpipe and the hub 9 of the. reaction sprinkler,

an arm 14: is secured at 15 to the upperr end of the central stem to project radially outward from it. .On this .arm 14 an impact member 16V ,is mounted to depend and swing `freely inthe path ofmovement of one or more of the tubes12 of the 'reaction sprinkler head. l

A mem'ber 17 is secured on the arm 1.4 to

checkthe-swinging movement of the member 16 beyondwhat is necessary to permit theV or more of its radial tubes 12 will strike the lower ,end of the swingingmember 16 as it passes under it, but as the member 16 swings Y freely,y thaty engagement does not in itself impart any movement to the radial arm 14 or the central stem 4, 7 to which that arm is secured,`but the impact ofthe arrested swing of the member 16, as it strikes the limiting check 17 whichv is secured to the arm 14, imparts a fractional rotational impulse to the arm 14- and the central stem 11, 7 in; which the outwardly directed jet tube 13 is secured. j

An intermittent fractional movement of rotation is thus imparted to thecentral jet tube 18, the jet from whichV is thus projected beyond the Zone of thereaction sprinkler.

vThe amount of the impulse imparted to the central jet tube may` be varied by vary ing the position ofthe check 17, permitting more or less swing beyond clearance of the tube 12, or by varying the position Yof the swinging member 16 on the radial arm from the axis of rotation.

Attention is drawn to thefact that there is 'nor' direct driving connection between the reactionsprinkler-Q, 12and the central jet tube 13 as the `impulse to rotate the central jet tube is not derived from the mechanical engagement of the tube 12 with the pendent member 16, but from the velocity with which the end of the pendent member is struck, which throws the pendent member against the check 17.

It is interesting to note that if the cheek 17 is removed beyond the forward swinging limit of the member 16, as that member falls back and is allowed to strike a check at 18, that check will give a rotational impulse to thev central stem in a direction opposite to that in which the reaction sprinkler is rotating.

A sleeve 19 ot hard rubber or the like may be secured on the tube 12 to avoid the clicking noise ot' the impact.

"manner set forth in Patent No. 1,484,684

granted on the 26th February 1924.

In Fig. the hub 9 of the reaction sprinler is mounted directly on the connection 3 and derives its water supply therethrough, and the central stem 2O in which the jet tube 13 is secured, is rotatably mounted in the upper end ot 3, with the arm 1li from which the swinging memberl depends, cured, as in Fig. 1, intermediate the jet tube 13 and the reactionsprinkler 9. The means for driving the hollow central stem 2O with its jet tube 13, which is the essential feature of the invention, is the same as dcscribed in relation to Figs. 1 and 2.

Having `now particularly described our invention, we hereby declare that what we claim as newV and desire to be protected in by Letters Patent, is:

1. A water sprinkler of the class 'described, comprising in combination, a hollow stem to which water under pressure is admitted, a reaction sprinkler mounted on the stem and deriving its water supply therethrough, .a central hollow stem independently rotatable about the same axis, a

member securedto the central stem to project over a rotatable part of the reaction sprinkler, a swinging member mounted on the projecting member, a check secured to the projecting member to limit the swing., and means for imparting movement to the swinging member against its limiting check whereby an intermittent fractional movement is imparted to the central stem.

2. A water sprinkler oft the class described, comprising in combination, a hollow stem to which water `under pressure is admitted, a reaction sprinkler mounted on the stem and deriving its water supply therethrough, a central hollow stem independently rotatable about the same axis, a member secured to the central stem to project over a rotatable part of the reaction sprinkler, a member mounted on the projecting mem` ber to swing over and in the path of a rotating part' of the reaction sprinkler, a. check secured to the projecting member to limit the swing, whereby as the reaction sprinkler rotates the swinging member will be thrown against its check, and will impart an intermittent fractional rotation to the central stem,

3. A water `sprinkler ot the class dc` scribed, comprising in combination, a hollow stem to which water under pressure is admitted, a reaction sprinkler mounted on the Astem and deriving its water supply therethrough, a central hollow stem independently rotatable about the same axis, a member secured to the central stem to project over a rotatable part ot the reaction sprinkler, a member mountedon the projecting member to swing over and in the path of a rotating part ot' the reaction sprinkler, a check secured to the projecting member to limit the swing, whereby as the reaction sprinkler rotates the s vinging member will be thrown againsct its check, and will impart an intermittent fractional rotation to the central stem, and a bushing on the rotatable part of the reaction sprin- -kler to receive the impact ot the swinging member.

et, A water sprinkler ot the class described comprising a hollow stem to which water under pressure is admitted, a reaction sprinkler rotatably mounted to turn on the axis of the stem and deriving its water supply from the same, a nozzle secured to turnk on the axis ot said stem, an arm rigidly connected with said nozzle to turn therewith, a swinging member mounted on said arm to swing on an axis in a plane at right angles to the axis of the said stem, and alcheck secured to said arm to limit the swing of said member to within definite limits, said reaction sprinkler having a member adapted to strike said swinging member at intervals for the'purposes speciiied. j

In testimony whereof we aiiix our signatures.

VILLIAM CHARLES TODD. JAMES VILLIAM POMEROY.- 

